Suppression of Superfluid Density and the Pseudogap State in the Cuprates by Impurities

Unurbat Erdenemunkh, Brian Koopman, Ling Fu +5

We use scanning tunneling microscopy (STM) to study magnetic Fe impurities intentionally doped into the high-temperature superconductor Bi${}_2$Sr${}_2$Ca${}_2$CuO${}_{8+\delta }$. Our spe…